Intra-abdominal Mycobacterium tuberculosis Infection in a Dog

A 4-year-old, 30.6-kg castrated male mixed-breed dog was referred for evaluation of acute diarrhea, inappetence, weight loss, and lethargy. The dog had otherwise been healthy since being adopted from a Greek animal shelter 18 months before presentation. The only other household pet was its clinically healthy littermate. On examination, the dog was lethargic, hyperthermic (102.4°F), had a body condition score of 3/9, and was moderately painful upon palpation of the cranial abdomen.